Dictatorship of the proletariat jails a member of the bourgeoisie notable for calling for the restoration of the dictatorship of the bourgeoisie and conspiring

Dictatorship of the proletariat jails a member of the bourgeoisie notable for calling for the restoration of the dictatorship of the bourgeoisie and conspiring with agents of bourgeois states to that end. This doesn't seem surprising? A revolutionary state working to prevent counterrevolution?